Machinery for shaving or dressing green hides or skins



(No Model.) 2 Sheets-Sheet 1.

J. ROOD.

MAGHINERY FOR SHAVING' 0R DRESSING GREEN HIDES 0R SKINS. No. 401,905.Patented Apr; 23, 1889 'lg l Q mm m mtnesred. R'\ \\T W h Inventor 2Sheets-Sheet 2.

J. ROOD. MAGHINBRY FOR SHAVING 0R DRESSING GREEN HIDES 0R SKINS. No.401,905.

Patented Apr. 23, l889 Witnesses.

N PETERi PholoLflhcgnphcr. Wuhington. p. c.

UNITE STATES PATENT OFFICE.

JOHN ROOD, OF SALEM, MASSACHUSETTS, ASSIGNOR TO ROOD & VAUGHAN,

' OF SAME PLACE.

MACHINERY FOR SHAVING 0R DRESSING GREEN HIDES OR SKINS.

SPECIFICATION forming part of Letters Patent No. 401,905, dated April23, 1889.

Application filed July 27, 1888. Serial No, 281,183. (No model.)

To all whom it may concern.-

Be it-known that I, JOHN R001), a citizen of the United States,-residingat Salem, in the county of Essex and State of Massachusetts, haveinvented certain new and useful Improvements in Machinery for Shaving orDressing Green Hides or Skins; and I do declare the following to be afull, clear, and exact description of the invention, such aswill enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

Figure 1 is a top view, Fig. 2 a vertical and transverse section, andFig. 3 a vertical and longitudinal section, of a machine of my inventionfor dressing green hides or skins, as will be hereinafter described.Fig. 4 is a side view of one of the yokes S and a portion of the frame,and Fig. 5 a horizontal section on line 1 1 of said Fig. 4. Fig. 6 is alongitudinal section, and Fig. '7 a transverse section, of amodification of the yielding bed.

The, object of my invention is to provide a machine that will removefrom the entire inner surface of a fresh or green hide or skin,notwithstanding the variation in thickness of parts of the skin, thefatty tissue, &c., without doing injury to the dermis or true skin, orthat part of the hide or skin to be tanned. Heretofore machines made forthis purpose have not successfully removed said fatty tissuefrom thethinner portions of the hide withoutdoing injury or removing more thanis necessary or desirable from the thicker portions, thus impairing thetrue skin or portion to be tanned and rendering it of less value for thepurpose of splitting.

In the drawings, A denotes the frame of the machine, supported at oneend of which in bearings a a, is a driving-shaft, B, on which arearranged 'fast' pulleys O O and D, 'a loose pulley, E, and asprocket-wheel, 1. Endless belts b I) pass around the pulleys C O andthe pulleys F F, secured to the shaft of the cutthe frame, as shown.

ll is a shaft sustained in bearings (1 cl in the frame, and has securedto it sprocketwheels 2 and 3. An endless chain, I, extends about thesprocket-wheels 1 and 2, and another endless chain, K, around thesprocketwheels 3 and 4, the latter wheel turning loosely on the shaft Lof a drum, M, fixed thereto, said shaft being sustained in boxes 6 e onthe frame. Arranged on the shaft L is a sleeve, f, which is splined tothe shaft and can be slid thereon by a lever, g, connected to saidsleeve and pivoted to a bracket, h, fastened to the frame. The sleeve fandthe hub of the sprocket-wheel 4 constitute a clutch to connect saidwheel 4 to the shaft L.

The drum M is provided with a clamping mechanism, U, arranged in anopening therein, as shown, it consisting of a rod, a, supported inbearings 19, secured to one edge of the opening, said rod having arms aclamped thereto, in the ends of which is pivoted arod," d. Encompassingsaid rod are bearings e, which are secured to a bar, f, which, when theclamp is closed, bears against the other are connected with a mechanismby whichthey can be moved lengthwise on the frame, so as to admit of theperiphery of the sharpening-wheel being revolved against the edge of theknives for the purpose of sharpening them as may be required, andafterward can be withdrawn from the same.

Underneath the cutter cylinder G is a yielding bed, which is representedin Fig. 2

as being made with cylindrical heads Z l, pro vided with journals m m,one of which is tubular and opens communication with the interior of thebed and is provided with a stop-cook, n. The body 0 of the bed iscomposed of a heavy rubber tube secured at its ends to the said heads.The journalsmmof the bed extend through slides 19 19, arranged betweenguides q q, projecting from the frame A, and into and through slots 0'1', formed in each side of the said frame, as shown, and serve to guidethe bed in its movements. Each slide 1) has a stud, 8, against whichrests the shorter arm of a lever, t, pivoted on a rod, u, supported inthe frame. The longer arms of the levers t are connected by rods o witha treadle, 10. Hanging on shoulders formed on the heads Z Z of the bedar yokes S S, which receive and support the journals of two rolls, T T,which sustain the bed throughout its length.

The interior of the body'of the bed R is filled with an elasticsubstance or with a fluid-such as water, air, or gaswhich is forced intoit under pressure and compressed therein to the necessary extent to giveto the said body the required rigidity, but still admit of itsconforming to the variations in the thickness of the hide while beingborne down upon said bed and acted upon by the knives of thecutter-cylinder.

Sometimes, instead of forming the entire body of the bed of a flexiblematerial, I construct the larger portion of the body of metal, and formthat part of it which bears the hide against the knives of thecutter-cylinder of a flexible material, as shown in Figs. 6 and 7 Inthis case I dispense with the yokes S and supporting-rolls T.

The cutter-cylinder is provided on its external surface with two seriesof knives, each series being arranged to extend from one end of thecylinder toward the other end thereof and in a spiral direction, thedirection of each series being opposite to that of the other series. Theknives of each series are extended beyond the middle of the cylinderlongitudinally thereof until they abut each against the other, saidcylinder being the same as shown and described in the United StatesPatent No. 383,914, granted on June 5, 1888, to myself and Ira Vaughan.

The office of the corrugated roll N is to prevent the skin from movingor being moved in a direction transversely of the machine by thecutter-cylinder while said skin is being dressed by it, as, owing to thearrangement of the knives of the said cylinder, the hide or skin wouldbe so moved if a larger portion of it should be 011 one side of themiddle of the cutter-cylinder, which often occurs, as a hide or skinvaries in width in portions of it.

Having described my invention,what I claim 15-- 1. In a machine forshaving or dressing hides or skins, the yielding bed, substantially asdescribed, its body being hollow and filled with an elastic substance orwith a fluid under pressure, as set forth, said bed being supported inslides arranged in the frame and operated or moved therein by the leverst and the treadle 10, connected therewith, in combination with thecutter-cylinder and grindingwheel arranged and provided with mechanism,essentially as explained, for operating said cylinder and wheel, as setforth.

2. The yielding bed, substantially as described, its body being hollowand filled with an elastic substance or with a fluid under pressure,essentially as set forth, said bed being supported in slides in theframe and having yokes S arranged on it, as shown, for supporting thebed-sustainingrolls T T, the whole being operated or moved by the leverst and the treadle 20, connected therewith, combined with the drum M,provided with the clamping mechanism, the cutter-cylinder, and grindingwheel arranged and provided with mechanism, essentially as explained,for operating said drum, cylinder, and wheel, as set forth.

3. The yielding bed formed with a hollow body and filled with an elasticsubstance or with a fluid under pressure, as set forth, said bed beingsupported in slides arranged in the frame an (I having mechanism formoving it toward the cutter-cylinder, as shown, in combination with thecorrugated roll N and the cutter-cylinder and grinding-wheel arrangedand provided with mechanism, essentially as explained, for operatingsaid cylinder and wheel, as set forth.

4. The yielding bed formed with a hollow body and filled with an elasticsubstance or with a fluid under pressure, as set forth, said bed beingsupported and having mechanism for moving it toward the cutter-cylinder,as shown, in combination with the corrugated roll N, the drum M,provided with the clamping mechanism, and the cutter-cylinder andgrinding-wheel arranged and provided with mechanism, essentially asexplained, for operating said drum-cylinder and wheel, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN ROOD.

\Vit-nesses:

S. N. PIPER, C. F. DANIELS.

